When using windows explorer I move or delete a file or directory and find that I am unable to open any other folders or do anything else until I close and reopen explorer. When it stops responding I get strange icons coming up on the left, like trees, and at the bottom of my drives list there appears to be an infinite number of unknown icons. I would prefer not to have to reinstall and when I checked there were no restore points. This is a fairly new install(2 weeks). Any suggestions would be appreciated.